Primal Whisperer [Legions] San Diego Comic-Con 2015 You can only use each

You can only use each effect of "Magicians' Souls" once per turn

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When Demon of Dark Schemes enters the battlefield

if this card battled an opponent's monster: You can take control of that opponent's monster until the end of the Battle Phase

You can only use 1 "Nehshaddoll Genius" effect per turn

Primal Whisperer [Legions] San Diego Comic-Con 2015 You can only use eachSet: Legions Type: Creature Elf Soldier Rarity: Rare Cost: {4}{G} Primal Whisperer gets +2 +2 for each face down creature on the battlefield. Morph {3}{G} (You may cast this card face down as a 2 2 creature for {3}. Turn it face up any time for its morph cost.)